Product name Acetonitrile Production method synthetic acetonitrile Molecular formula C2H3N Cas number 75-05-8 Appearance and properties colorless liquid with pungent odor. Molecular weight 41.06 Melting point (℃) -45 Boiling point (℃) 82 Relative density 0.786 (25℃, 100kPa) Critical pressure (MPa) 4.83 Relative vapor density 1.42 Refractive index 1.3441 Flash point (℃) 6℃ Solubility miscible with water, soluble in most organic solvents such as ethanol and ether Other Toxic, flammable, bright flame when burning. Product quality index Industry standard (SH/T1627.1-1996), ZHONGHUI Chemical Enterprise Standard (ZH/S01.1-2013)